High-performance zeolite for reducing nitrogen oxide emissions, method of preparing same and catalyst using same
AssigneesHyundai Motor Company, Kia Corporation, Heesung Catalysts Corporation
InventorsPyung Soon Kim, Young Jin Kim, Chang Hwan Kim, Seung Chul Na, Seung Ho Oh, Young San Yoo, Ho Dong Kim
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Abstract
Disdosed is a method of preparing a high-performance zeolite catalyst for reducing nitrogen oxide emissions, and more particularly a technique for preparing a zeolite catalyst, suitable for use in effectively removing nitrogen oxide (NOx), among exhaust gases emitted from vehicle internal combustion engines through selective catalytic reduction (SCR), thereby exhibiting high efficiency, high chemical stability and high thermal durability upon SCR using the prepared catalyst.
Claims15
A method of preparing a copper-impregnated LTA zeolite catalyst, the method comprising
- producing an LTA zeolite and
- impregnating copper in the LTA zeolite, wherein the producing of the LTA zeolite is performed using a fluorine-substituted structure-directing agent (SDA-F).
Dependencies are inferred from the claim text.